Improvement of Tribological Properties by Titanium Nitride Deposition in Titanium Alloys Produced by Powder Metallurgy

被引：1
|
作者：
Galvani, E. T. [1 ]
Henriques, V. A. R. [2 ]
Lemos, T. G. [3 ]
机构：
[1] Ctr Tecn Aerosp DCTA, Inst Tecnol Aeronaut ITA, BR-12228904 Sao Jose Dos Campos, SP, Brazil
[2] IAE, DCTA, Divisao Materiais AMR, BR-12228904 Sao Jose Dos Campos, Brazil
[3] EEL USP, LOM, BR-12600970 Lorena, Brazil
来源：
ADVANCED POWDER TECHNOLOGY VIII, PTS 1 AND 2 | 2012年 / 727-728卷
关键词：
titanium alloys; titanium nitride; EB-PVD; coatings; powder metallurgy; wear; PVD;
D O I：
10.4028/www.scientific.net/MSF.727-728.480
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Titanium nitride (TiN) is a hard material, often used as coating to improve the wear properties of titanium alloys in machining, implant and aerospace applications. Electron Beam Physical Vapor Deposition (EB-PVD) is a technique which a target anode is bombarded with an electron beam given off by a charged tungsten filament under high vacuum, producing a thin film in a substrate. In this work, results of TiN films depositions on Ti-13Nb-13Zr substrates by EB-PVD are studied. Titanium targets were obtained by a purified ingot and the substrates produced by powder metallurgy. Sintered samples of Ti-13Nb-13Zr and TiN layers were characterized by X-ray diffraction, scanning electron microscopy, Vickers microhardness and wear tests. The TiN films presented high hardness values, continuity and large thickness. The coatings improved the tribological properties of the substrate due to high adhesion and low wear rate.
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收藏
页码：480 / +
页数：2
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